Pipe joints or couplings – With strain relief
Patent
1983-02-18
1985-09-24
Husar, Cornelius J.
Pipe joints or couplings
With strain relief
285226, 285227, F16L 2700
Patent
active
045429219
ABSTRACT:
Two rigid cylindrical sleeves are interconnected by a spring bellows. Each cylindrical sleeve carries a flange section. Such flange section is provided with joint plates. The joint plates are a forklike interconnecting structure. A rolling contact wedge member is located in a first number of joint plates and a rolling contact prism member is located in a second number of joint plates. This provides for a hinge-like joint of a rolling contact rocker structure having a line contact only of the parts moving relative to each other. Because no friction exists in such hinge joint, a cold welding is not possible. Accordingly, no additional stresses due to such cold welding will be able to exist in the pipe conduit sections interconnected by this apparatus.
REFERENCES:
patent: 1958260 (1934-05-01), Bigger
patent: 3869151 (1975-03-01), Fletcher et al.
patent: 4158462 (1979-06-01), Coral
Marti Wilhelm
Reichen Fredy
BOA A.G. Luzern
Husar Cornelius J.
O'Brien Anthony A.
Williams Todd G.
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